sew something ↔ up phrasal verb ( see also ↑ sew )
1 . to close or repair something by sewing it:
Could you sew up this hole in my trousers?
2 . [usually passive] informal to finish a business agreement or plan and get the result you want:
The deal should be sewn up in a week.
3 . have something sewn up to have gained control over a situation so that you are sure to win or get what you want:
It looks like the Democrats have the election sewn up.